Document Detail


Lipid compounds of human Wharton's jelly and their alterations in preeclampsia.
MedLine Citation:
PMID:  19878355     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Wharton's jelly is a myxomatous substance which surrounds the umbilical cord vessels protecting them against extension, bending, twisting and compression. Very low number of cells in this tissue produce high amounts of extracellular matrix; collagen, hyaluronate and proteoglycans which bind large quantities of peptide growth factors (PGFs). Preeclampsia (the most common pregnancy-associated syndrome) is accompanied by a significant reduction in hyaluronate and a concomitant increase in sulphated glycosaminoglycans/proteoglycans content in Wharton's jelly. Such a phenomenon corresponds to an 'early ageing' of this tissue. We have evaluated the lipid composition of Wharton's jelly and its alteration in preeclampsia. Thin layer chromatography and high-performance liquid chromatography were employed. It was found that Wharton's jelly contains free fatty acids (FFA), mono-, di- and triacylglycerols, free cholesterol and its esters. The characteristic feature is the presence of relatively high amounts of unsaturated fatty acids, including those (C18:2 and C18:3) which are nutritionally essential. Preeclampsia is associated with a slight increase in the total fatty acid content in Wharton's jelly and with marked changes in the proportional relationships between various lipids. A distinct decrease in the amounts of FFA was observed with a concomitant increase in monoacylglycerols and cholesterol esters. At least in some cases the effects exerted by PGFs are mediated by the lipid second messengers. Thus it is possible that alterations in lipid compounds of Wharton's jelly may participate in the deregulation of various cell functions, including overproduction of sulphated glycosaminoglycans or down-regulation of enzymes which participate in their degradation.
Authors:
Lech Romanowicz; Edward Bańkowski
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Publication Detail:
Type:  Journal Article     Date:  2009-10-28
Journal Detail:
Title:  International journal of experimental pathology     Volume:  91     ISSN:  1365-2613     ISO Abbreviation:  Int J Exp Pathol     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-01-25     Completed Date:  2010-02-04     Revised Date:  2013-05-31    
Medline Journal Info:
Nlm Unique ID:  9014042     Medline TA:  Int J Exp Pathol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1-9     Citation Subset:  IM    
Affiliation:
Department of Medical Biochemistry, Medical University of Białystok, Białystok, Poland. lroman@umwb.edu.pl
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MeSH Terms
Descriptor/Qualifier:
Adult
Biological Markers / analysis
Case-Control Studies
Cholesterol / analysis
Cholesterol Esters / analysis
Chromatography, High Pressure Liquid
Chromatography, Thin Layer
Connective Tissue / chemistry*,  pathology
Fatty Acids, Nonesterified / analysis
Female
Gestational Age
Glycerides / analysis
Humans
Infant, Newborn
Lipids / analysis*
Pre-Eclampsia / metabolism*,  pathology
Pregnancy
Umbilical Cord / blood supply*
Young Adult
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Cholesterol Esters; 0/Fatty Acids, Nonesterified; 0/Glycerides; 0/Lipids; 57-88-5/Cholesterol
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